Re: IPV6 connection to www.debian.org
Hi,
(Resending since it bounced....)
On Thu, May 17, 2012 at 11:29:25AM +0200, Witold Baryluk wrote:
> On 05-15 19:45, Simon Paillard wrote:
> > Hi Osamu,
> >
> > On Tue, May 15, 2012 at 11:03:10PM +0900, Osamu Aoki wrote:
> > > Recently, my fiber-connection ISP moved to serve IPV6. This has made me
> > > access www.debian.org via IPV6.
> > >
> > > Somehow, I get very slow connection occasionally.
I just had this problem again. It was single occasion when I was
downloading many package files and accessing Debian site. My browser
was sent RST according to the chromium browser screen.
> I am suspecting
> > > configuration problem on my side. (IPV6->IPV4 fall back issue?) But
> > > this problem happens only with www.debian.org and less with some page
> > > like http://www.debian.org/Bugs/ .
> >
> > The DNS TTL is 300s for www.debian.org, so the fact it's occasional
> > certainly depends on the web server you connect to.
> >
> > First, please check which view is served for you:
> > $ dig +short TXT www.debian.org @geo1.debian.org
"AS view"
> > You can also check which ip you connect to.
(From browser plug-in)
Remote Host:
IP Address: 2001:858:2:2:214:22ff:fe0d:7717
Hostname: englund.debian.org
> > I've check v4 vs v6 latency/rates for all our webmirrors, nothing
> > surprising/chocking.
> >
>
> BTW. What geolocation database is debian NS servers use for IPv6?
>
> For example it thinks my tunnel which have endpoint in Frankfurt or
> Amsterdam are in NA (North America), not EU. :(
I do not use so-called tunnel by myself. My ISP offers IPV4/IPV6 dual
stack service down to my home router. They just upgraded to it by
remote firmware updates in April.
> For example for Hurrican Electrics it have lots of end points
> and (based on my own info, info from webpage, dns and from telnet route-server.he.net.) for example
>
> tserv6.fra1.ipv6.he.net (2001:470:0:6a::1, 216.66.80.30) serves a 2001:470:1f0b::/48 is located in Frankfurt, DE
> near core1.fra1.he.net router: Interxion Frankfurt 216.218.252.174 2001:470:0:2a::1
>
> tserv11.ams1.ipv6.he.net (2001:470:0:7e::1, 216.66.84.46) serves a 2001:470:1f15::/48 is located in Amsterdam, NL
> near core1.ams1.he.net router: NIKHEF Amsterdam 216.218.252.173 2001:470:0:e::1
>
> tserv28.waw1.ipv6.he.net (216.66.80.162) serves a 2001:470:71::/48 is located in Warsaw, PL
> near core1.waw1.he.net router: PLIX Warsaw 216.218.252.189 2001:470:0:215::1
>
> This servers also serves other /48 blocks, but they are rare, because
> normally they allocate /64 subblocks from this /48 mentioned above.
>
> `dig -6 -TXT www.debian.org @geo1.debian.org` thinks I'm in NA.
>
> All servers listed here http://tunnelbroker.net/status.php and core routers using telnet router-server.he.net
>
> I however do not know how to extract all prefixes for each server easly.
>
> I know tunneled connections are problematic, but still as my IPv6
> address is essentially behind router/server in Frankfurt, it should be
> mapping me to Europe at least, not America.
I do not know if this appples to me.
$ traceroute6 englund.debian.org
traceroute to englund.debian.org (2001:858:2:2:214:22ff:fe0d:7717), 30 hops max, 80 byte packets
1-4 not copied
5 sjkBBAC07.v6.kddi.ne.jp (2001:268:fa01:6ff::1) 11.388 ms 11.387 ms 11.956 ms
6 2001:268:fa00:fff1::1 (2001:268:fa00:fff1::1) 13.520 ms 6otejbb203.int-gw.kddi.ne.jp (2001:268:fa00:fff6::1) 4.017 ms 2001:268:fa00:fff1::1 (2001:268:fa00:fff1::1) 9.149 ms
7 6ix-ote206.int-gw.kddi.ne.jp (2001:268:fb02:2::3) 9.523 ms 6ix-ote206.int-gw.kddi.ne.jp (2001:268:fb02:4::3) 9.303 ms 6ix-ote206.int-gw.kddi.ne.jp (2001:268:fb02:1::3) 9.816 ms
8 2001:de8:8::6939:1 (2001:de8:8::6939:1) 10.004 ms 10.191 ms 10.379 ms
9 10gigabitethernet3-3.core1.sjc2.he.net (2001:470:0:119::1) 133.975 ms 134.130 ms 134.241 ms
10 10gigabitethernet5-3.core1.lax2.he.net (2001:470:0:16a::2) 131.531 ms 131.506 ms 131.759 ms
11 2001:470:0:24a::1 (2001:470:0:24a::1) 138.959 ms 139.274 ms 132.252 ms
12 10gigabitethernet5-3.core1.dal1.he.net (2001:470:0:258::2) 152.803 ms 153.072 ms 153.350 ms
13 10gigabitethernet1-3.core1.mia1.he.net (2001:470:0:242::2) 206.736 ms 207.324 ms 206.721 ms
14 10gigabitethernet1-1.core1.atl1.he.net (2001:470:0:a6::2) 205.432 ms 201.964 ms 202.106 ms
15 10gigabitethernet6-4.core1.ash1.he.net (2001:470:0:1b5::1) 201.560 ms 200.432 ms 206.606 ms
16 2001:504:0:2::1257:1 (2001:504:0:2::1257:1) 202.102 ms * *
17 nyc9-core-1.pos1-0-0.tele2.net (2a00:800:0:1::55:1) 202.889 ms * *
18 nyc9-peer-1.xe-0-0-1-unit0.tele2.net (2a00:800:0:1::76:2) 208.344 ms 203.380 ms 200.526 ms
19 lim-core-2.tengige0-1-0-5.tele2.net (2a00:800:0:1::77:1) 283.640 ms 283.191 ms 282.214 ms
20 ams16-core-1.tengigabiteth2-0-0.tele2.net (2a00:800:0:1::8e:1) 283.110 ms ams16-core-1.tengigabiteth4-0-0.tele2.net (2a00:800:0:1::8f:2) 281.951 ms *
21 * cbv-core-1.pos15-0-0.tele2.net (2a00:800:0:1::43:2) 290.804 ms *
22 cbv-core-3.tengige0-0-0-2.tele2.net (2a00:800:0:1::d:1) 297.646 ms 294.423 ms 297.633 ms
23 wen3-core-1.pos12-0.tele2.net (2a00:800:0:1::6:1) 315.726 ms 317.320 ms 317.503 ms
24 * 2a00:800:0:1::38:2 (2a00:800:0:1::38:2) 315.469 ms 309.758 ms
25 2001:938:2::10:1 (2001:938:2::10:1) 305.801 ms 307.136 ms 307.377 ms
26 2001:938:affe::124:671:2 (2001:938:affe::124:671:2) 314.613 ms 314.152 ms 315.009 ms
27 2001:858:66:203:215:2cff:fe8d:bc00 (2001:858:66:203:215:2cff:fe8d:bc00) 312.086 ms 312.711 ms 311.206 ms
28 ip6-te1-4-c2.oe3.sil.at (2001:858:66:204:21d:71ff:fecf:1580) 313.829 ms 314.943 ms 313.860 ms
29 2001:858:66:22c:217:fff:fed4:6000 (2001:858:66:22c:217:fff:fed4:6000) 316.648 ms 316.870 ms 315.762 ms
30 englund.debian.org (2001:858:2:2:214:22ff:fe0d:7717) 306.974 ms 308.849 ms 305.407 ms
Hmmmm... 30 hops and many *.
$ traceroute englund.debian.org
traceroute to englund.debian.org (86.59.118.148), 30 hops max, 60 byte packets
1-4 not copied
5 sjkBBAC07.bb.kddi.ne.jp (118.152.210.33) 11.544 ms 11.739 ms 11.924 ms
6 otejbb203.kddnet.ad.jp (210.234.225.89) 12.208 ms 4.216 ms otejbb203.kddnet.ad.jp (210.234.250.49) 10.065 ms
7 lajbb001.kddnet.ad.jp (203.181.100.10) 115.291 ms lajbb001.kddnet.ad.jp (203.181.100.14) 115.002 ms lajbb001.kddnet.ad.jp (203.181.100.18) 126.798 ms
8 tr-ny5.kddnet.ad.jp (59.128.3.58) 205.404 ms 205.791 ms 205.550 ms
9 nyc1-core.gigabiteth4-0.swip.net (198.32.160.140) 193.724 ms 200.217 ms 194.787 ms
10 nyc9-core-1.tengigabiteth13-1-0.tele2.net (130.244.49.22) 191.870 ms 190.582 ms 192.052 ms
11 ams-core-1.pos0-7-4-0.tele2.net (130.244.218.141) 276.455 ms 268.838 ms 269.042 ms
12 fra50-core-1.bundle-pos2.tele2.net (130.244.49.218) 272.213 ms 272.340 ms 271.182 ms
13 wen1-core-1.pos9-0.tele2.net (130.244.205.42) 279.351 ms 279.355 ms 278.952 ms
14 130.244.49.114 (130.244.49.114) 282.794 ms 280.987 ms 327.895 ms
15 81.189.132.90 (81.189.132.90) 288.537 ms 289.062 ms 289.187 ms
16 86.59.118.145 (86.59.118.145) 276.930 ms 276.654 ms 276.906 ms
17 86.59.118.148 (86.59.118.148) 286.262 ms 286.626 ms 285.932 ms
For englund.debian.org, IPV4 connection is much less hops.
But some www.debian.org mirror is closer to me:
$ traceroute6 www.debian.org
traceroute to www.debian.org (2001:41b8:202:deb:1a1a:0:52c3:4b61), 30 hops max, 80 byte packets
1-4 not copied
5 sjkBBAC07.v6.kddi.ne.jp (2001:268:fa01:6fe::1) 12.463 ms 12.646 ms 13.141 ms
6 6otejbb203.int-gw.kddi.ne.jp (2001:268:fa00:fff7::1) 13.356 ms 2001:268:fa00:fff1::1 (2001:268:fa00:fff1::1) 4.394 ms 6otejbb203.int-gw.kddi.ne.jp (2001:268:fa00:fff6::1) 9.447 ms
7 6ix-ote207.int-gw.kddi.ne.jp (2001:268:fb02:2::4) 10.239 ms 6ix-ote207.int-gw.kddi.ne.jp (2001:268:fb02:3::4) 9.797 ms 6ix-ote207.int-gw.kddi.ne.jp (2001:268:fb02:2::4) 9.590 ms
8 2001:200:0:fe00::9c1:0 (2001:200:0:fe00::9c1:0) 10.399 ms 10.548 ms 10.733 ms
9 tky001bb11.IIJ.Net (2001:240:bb01:32::7e) 10.917 ms 11.234 ms 11.416 ms
10 tky001bf00.IIJ.Net (2001:240:bb00:9006::71) 66.302 ms 66.274 ms 66.578 ms
11 sjc002bf00.iij.net (2001:48b0:bb00:8015::400c) 112.441 ms 112.135 ms 106.267 ms
12 sjc002bb10.iij.net (2001:48b0:bb00:8010::4004) 160.864 ms 161.133 ms 161.317 ms
13 equinix6-sjc.ip.tiscali.net (2001:504:0:1::3257:1) 175.979 ms 176.258 ms 177.063 ms
14 xe-10-2-0.fra21.ip6.tinet.net (2001:668:0:2::1:1231) 266.868 ms xe-7-0-0.fra21.ip6.tinet.net (2001:668:0:2::1:1241) 267.146 ms xe-8-0-0.fra21.ip6.tinet.net (2001:668:0:2::1:1672) 265.102 ms
15 mediaport-gw.ip6.tinet.net (2001:668:0:3::2000:5e2) 264.795 ms 256.786 ms 260.171 ms
16 ge-1-0-0-572.core1.fra1.ix.f.man-da.net (2001:4c50:1:8000:1::2) 262.558 ms 258.264 ms 261.723 ms
17 te-0-0-0-400.core1.rz.hda.da.man-da.net (2001:41b8:1:ffff::402) 259.686 ms 263.842 ms te-1-2-0-400.core1.an.f.man-da.net (2001:41b8:3:ffff::501) 263.334 ms
18 te-2-3-0-403.core1.sm.tu.da.man-da.net (2001:41b8:5:ffff::2) 270.703 ms 270.679 ms te-0-0-0-400.core1.sm.tu.da.man-da.net (2001:41b8:0:ffff::501) 265.815 ms
19 ge-0-2-400.cust1.sm.tu.da.man-da.net (2001:41b8:0:ffff::102) 260.659 ms 260.030 ms 258.859 ms
20 fw01-man-da.ayous.org (2001:41b8:ff:9::10) 263.989 ms 262.174 ms 262.358 ms
21 kokkonen.debian.org (2001:41b8:202:deb:1a1a:0:52c3:4b61) 261.853 ms 262.758 ms 266.415 ms
Osamu
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